5227167171221 has 2 divisors, whose sum is σ = 5227167171222. Its totient is φ = 5227167171220.

The previous prime is 5227167171203. The next prime is 5227167171253. The reversal of 5227167171221 is 1221717617225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2732362716196 + 2494804455025 = 1652986^2 + 1579495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5227167171221 is a prime.

It is a super-2 number, since 2×5227167171221² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5227167170221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2613583585610 + 2613583585611.

It is an arithmetic number, because the mean of its divisors is an integer number (2613583585611).

Almost surely, 2^{5227167171221} is an apocalyptic number.

It is an amenable number.

5227167171221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5227167171221 is an equidigital number, since it uses as much as digits as its factorization.

5227167171221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 164640, while the sum is 44.

The spelling of 5227167171221 in words is "five trillion, two hundred twenty-seven billion, one hundred sixty-seven million, one hundred seventy-one thousand, two hundred twenty-one".